1c7d4d259SMartin Schwidefsky /* 2c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 3c7d4d259SMartin Schwidefsky * 4c7d4d259SMartin Schwidefsky * Copyright IBM Corp. 2003, 2016 5c7d4d259SMartin Schwidefsky * Author(s): Thomas Spatzier 6c7d4d259SMartin Schwidefsky * Jan Glauber 7c7d4d259SMartin Schwidefsky * Harald Freudenberger (freude@de.ibm.com) 8c7d4d259SMartin Schwidefsky * Martin Schwidefsky <schwidefsky@de.ibm.com> 9c7d4d259SMartin Schwidefsky */ 10c7d4d259SMartin Schwidefsky #ifndef _ASM_S390_CPACF_H 11c7d4d259SMartin Schwidefsky #define _ASM_S390_CPACF_H 12c7d4d259SMartin Schwidefsky 13c7d4d259SMartin Schwidefsky #include <asm/facility.h> 14c7d4d259SMartin Schwidefsky 15c7d4d259SMartin Schwidefsky /* 16c7d4d259SMartin Schwidefsky * Instruction opcodes for the CPACF instructions 17c7d4d259SMartin Schwidefsky */ 18c7d4d259SMartin Schwidefsky #define CPACF_KMAC 0xb91e /* MSA */ 19c7d4d259SMartin Schwidefsky #define CPACF_KM 0xb92e /* MSA */ 20c7d4d259SMartin Schwidefsky #define CPACF_KMC 0xb92f /* MSA */ 21c7d4d259SMartin Schwidefsky #define CPACF_KIMD 0xb93e /* MSA */ 22c7d4d259SMartin Schwidefsky #define CPACF_KLMD 0xb93f /* MSA */ 231afd43e0SDavid Hildenbrand #define CPACF_PCKMO 0xb928 /* MSA3 */ 241afd43e0SDavid Hildenbrand #define CPACF_KMF 0xb92a /* MSA4 */ 251afd43e0SDavid Hildenbrand #define CPACF_KMO 0xb92b /* MSA4 */ 26c7d4d259SMartin Schwidefsky #define CPACF_PCC 0xb92c /* MSA4 */ 27c7d4d259SMartin Schwidefsky #define CPACF_KMCTR 0xb92d /* MSA4 */ 28c7d4d259SMartin Schwidefsky #define CPACF_PPNO 0xb93c /* MSA5 */ 29c7d4d259SMartin Schwidefsky 30c7d4d259SMartin Schwidefsky /* 31edc63a37SMartin Schwidefsky * Decryption modifier bit 32edc63a37SMartin Schwidefsky */ 33edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 34edc63a37SMartin Schwidefsky 35edc63a37SMartin Schwidefsky /* 36edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 37c7d4d259SMartin Schwidefsky */ 38c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 39edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 40edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 41edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 42edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 43edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 44edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 45edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 46edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 47c7d4d259SMartin Schwidefsky 48c7d4d259SMartin Schwidefsky /* 49c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 50edc63a37SMartin Schwidefsky * instruction 51c7d4d259SMartin Schwidefsky */ 52c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 53edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 54edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 55edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 56edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 57edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 58edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 59c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 60c7d4d259SMartin Schwidefsky 61c7d4d259SMartin Schwidefsky /* 62c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 63edc63a37SMartin Schwidefsky * instruction 64c7d4d259SMartin Schwidefsky */ 65c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 66edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 67edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 68edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 69edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 70edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 71edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 72c7d4d259SMartin Schwidefsky 73c7d4d259SMartin Schwidefsky /* 74c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 75edc63a37SMartin Schwidefsky * instruction 76c7d4d259SMartin Schwidefsky */ 77c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 78c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 79c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 80c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 81c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 82c7d4d259SMartin Schwidefsky 83c7d4d259SMartin Schwidefsky /* 84c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 85edc63a37SMartin Schwidefsky * instruction 86c7d4d259SMartin Schwidefsky */ 87c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 88c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 89c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 90c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 91c7d4d259SMartin Schwidefsky 92c7d4d259SMartin Schwidefsky /* 93c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 94edc63a37SMartin Schwidefsky * instruction 95c7d4d259SMartin Schwidefsky */ 96c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 97c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 98c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 99c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 100c7d4d259SMartin Schwidefsky 101c7d4d259SMartin Schwidefsky /* 102c7d4d259SMartin Schwidefsky * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 103edc63a37SMartin Schwidefsky * instruction 104c7d4d259SMartin Schwidefsky */ 105c7d4d259SMartin Schwidefsky #define CPACF_PPNO_QUERY 0x00 106c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_GEN 0x03 107c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_SEED 0x83 108c7d4d259SMartin Schwidefsky 109c7d4d259SMartin Schwidefsky /** 110c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 111c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 112c7d4d259SMartin Schwidefsky * @func: the function code to test for 113c7d4d259SMartin Schwidefsky * 114c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 115c7d4d259SMartin Schwidefsky * and checks if @func is available 116c7d4d259SMartin Schwidefsky * 117c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 118c7d4d259SMartin Schwidefsky */ 119c7d4d259SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, unsigned char *status) 120c7d4d259SMartin Schwidefsky { 121c7d4d259SMartin Schwidefsky typedef struct { unsigned char _[16]; } status_type; 122c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 123c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) status; 124c7d4d259SMartin Schwidefsky 125c7d4d259SMartin Schwidefsky asm volatile( 1261afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 127c7d4d259SMartin Schwidefsky /* Parameter registers are ignored, but may not be 0 */ 128c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,2,2,2,0\n" 129c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 130c7d4d259SMartin Schwidefsky : "=m" (*(status_type *) status) 131c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 132c7d4d259SMartin Schwidefsky : "cc"); 133c7d4d259SMartin Schwidefsky } 134c7d4d259SMartin Schwidefsky 135c7d4d259SMartin Schwidefsky static inline int cpacf_query(unsigned int opcode, unsigned int func) 136c7d4d259SMartin Schwidefsky { 137c7d4d259SMartin Schwidefsky unsigned char status[16]; 138c7d4d259SMartin Schwidefsky 139c7d4d259SMartin Schwidefsky switch (opcode) { 140c7d4d259SMartin Schwidefsky case CPACF_KMAC: 141c7d4d259SMartin Schwidefsky case CPACF_KM: 142c7d4d259SMartin Schwidefsky case CPACF_KMC: 143c7d4d259SMartin Schwidefsky case CPACF_KIMD: 144c7d4d259SMartin Schwidefsky case CPACF_KLMD: 145c7d4d259SMartin Schwidefsky if (!test_facility(17)) /* check for MSA */ 146c7d4d259SMartin Schwidefsky return 0; 147c7d4d259SMartin Schwidefsky break; 1481afd43e0SDavid Hildenbrand case CPACF_PCKMO: 1491afd43e0SDavid Hildenbrand if (!test_facility(76)) /* check for MSA3 */ 1501afd43e0SDavid Hildenbrand return 0; 1511afd43e0SDavid Hildenbrand break; 1521afd43e0SDavid Hildenbrand case CPACF_KMF: 1531afd43e0SDavid Hildenbrand case CPACF_KMO: 154c7d4d259SMartin Schwidefsky case CPACF_PCC: 155c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 156c7d4d259SMartin Schwidefsky if (!test_facility(77)) /* check for MSA4 */ 157c7d4d259SMartin Schwidefsky return 0; 158c7d4d259SMartin Schwidefsky break; 159c7d4d259SMartin Schwidefsky case CPACF_PPNO: 160c7d4d259SMartin Schwidefsky if (!test_facility(57)) /* check for MSA5 */ 161c7d4d259SMartin Schwidefsky return 0; 162c7d4d259SMartin Schwidefsky break; 163c7d4d259SMartin Schwidefsky default: 164c7d4d259SMartin Schwidefsky BUG(); 165c7d4d259SMartin Schwidefsky } 166c7d4d259SMartin Schwidefsky __cpacf_query(opcode, status); 167c7d4d259SMartin Schwidefsky return (status[func >> 3] & (0x80 >> (func & 7))) != 0; 168c7d4d259SMartin Schwidefsky } 169c7d4d259SMartin Schwidefsky 170c7d4d259SMartin Schwidefsky /** 171c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 172c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 173c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 174c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 175c7d4d259SMartin Schwidefsky * @src: address of source memory area 176c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 177c7d4d259SMartin Schwidefsky * 178c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 179c7d4d259SMartin Schwidefsky * encryption/decryption funcs 180c7d4d259SMartin Schwidefsky */ 181edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 182c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 183c7d4d259SMartin Schwidefsky { 184c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 185c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 186c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 187c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 188c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 189c7d4d259SMartin Schwidefsky 190c7d4d259SMartin Schwidefsky asm volatile( 191c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 192c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 193c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 194c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 195c7d4d259SMartin Schwidefsky : "cc", "memory"); 196c7d4d259SMartin Schwidefsky 197c7d4d259SMartin Schwidefsky return src_len - r3; 198c7d4d259SMartin Schwidefsky } 199c7d4d259SMartin Schwidefsky 200c7d4d259SMartin Schwidefsky /** 201c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 202c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 203c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 204c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 205c7d4d259SMartin Schwidefsky * @src: address of source memory area 206c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 207c7d4d259SMartin Schwidefsky * 208c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 209c7d4d259SMartin Schwidefsky * encryption/decryption funcs 210c7d4d259SMartin Schwidefsky */ 211edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 212c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 213c7d4d259SMartin Schwidefsky { 214c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 215c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 216c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 217c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 218c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 219c7d4d259SMartin Schwidefsky 220c7d4d259SMartin Schwidefsky asm volatile( 221c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 222c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 223c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 224c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 225c7d4d259SMartin Schwidefsky : "cc", "memory"); 226c7d4d259SMartin Schwidefsky 227c7d4d259SMartin Schwidefsky return src_len - r3; 228c7d4d259SMartin Schwidefsky } 229c7d4d259SMartin Schwidefsky 230c7d4d259SMartin Schwidefsky /** 231c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 232c7d4d259SMartin Schwidefsky * instruction 233c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 234c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 235c7d4d259SMartin Schwidefsky * @src: address of source memory area 236c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 237c7d4d259SMartin Schwidefsky */ 238*0177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 239c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 240c7d4d259SMartin Schwidefsky { 241c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 242c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 243c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 244c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 245c7d4d259SMartin Schwidefsky 246c7d4d259SMartin Schwidefsky asm volatile( 247c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 248c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 249c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 250c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 251c7d4d259SMartin Schwidefsky : "cc", "memory"); 252c7d4d259SMartin Schwidefsky } 253c7d4d259SMartin Schwidefsky 254c7d4d259SMartin Schwidefsky /** 255c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 256c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 257c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 258c7d4d259SMartin Schwidefsky * @src: address of source memory area 259c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 260c7d4d259SMartin Schwidefsky */ 261*0177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 262c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 263c7d4d259SMartin Schwidefsky { 264c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 265c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 266c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 267c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 268c7d4d259SMartin Schwidefsky 269c7d4d259SMartin Schwidefsky asm volatile( 270c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 271c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 272c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 273c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 274c7d4d259SMartin Schwidefsky : "cc", "memory"); 275c7d4d259SMartin Schwidefsky } 276c7d4d259SMartin Schwidefsky 277c7d4d259SMartin Schwidefsky /** 278c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 279c7d4d259SMartin Schwidefsky * instruction 280c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 281c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 282c7d4d259SMartin Schwidefsky * @src: address of source memory area 283c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 284c7d4d259SMartin Schwidefsky * 285c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 286c7d4d259SMartin Schwidefsky */ 287edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 288c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 289c7d4d259SMartin Schwidefsky { 290c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 291c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 292c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 293c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 294c7d4d259SMartin Schwidefsky 295c7d4d259SMartin Schwidefsky asm volatile( 296c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 297c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 298c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 299c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 300c7d4d259SMartin Schwidefsky : "cc", "memory"); 301c7d4d259SMartin Schwidefsky 302c7d4d259SMartin Schwidefsky return src_len - r3; 303c7d4d259SMartin Schwidefsky } 304c7d4d259SMartin Schwidefsky 305c7d4d259SMartin Schwidefsky /** 306c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 307c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 308c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 309c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 310c7d4d259SMartin Schwidefsky * @src: address of source memory area 311c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 312c7d4d259SMartin Schwidefsky * @counter: address of counter value 313c7d4d259SMartin Schwidefsky * 314c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 315c7d4d259SMartin Schwidefsky * encryption/decryption funcs 316c7d4d259SMartin Schwidefsky */ 317edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 318c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 319c7d4d259SMartin Schwidefsky { 320c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 321c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 322c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 323c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 324c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 325c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 326c7d4d259SMartin Schwidefsky 327c7d4d259SMartin Schwidefsky asm volatile( 328c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 329c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 330c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 331c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 332c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 333c7d4d259SMartin Schwidefsky : "cc", "memory"); 334c7d4d259SMartin Schwidefsky 335c7d4d259SMartin Schwidefsky return src_len - r3; 336c7d4d259SMartin Schwidefsky } 337c7d4d259SMartin Schwidefsky 338c7d4d259SMartin Schwidefsky /** 339c7d4d259SMartin Schwidefsky * cpacf_ppno() - executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 340c7d4d259SMartin Schwidefsky * instruction 341c7d4d259SMartin Schwidefsky * @func: the function code passed to PPNO; see CPACF_PPNO_xxx defines 342c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 343c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 344c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 345c7d4d259SMartin Schwidefsky * @seed: address of seed data 346c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 347c7d4d259SMartin Schwidefsky */ 348*0177db01SMartin Schwidefsky static inline void cpacf_ppno(unsigned long func, void *param, 349c7d4d259SMartin Schwidefsky u8 *dest, long dest_len, 350c7d4d259SMartin Schwidefsky const u8 *seed, long seed_len) 351c7d4d259SMartin Schwidefsky { 352c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 353c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 354c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 355c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 356c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 357c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 358c7d4d259SMartin Schwidefsky 359c7d4d259SMartin Schwidefsky asm volatile ( 360c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 361c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 362c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 363c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 364c7d4d259SMartin Schwidefsky [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PPNO) 365c7d4d259SMartin Schwidefsky : "cc", "memory"); 366c7d4d259SMartin Schwidefsky } 367c7d4d259SMartin Schwidefsky 368c7d4d259SMartin Schwidefsky /** 369c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 370c7d4d259SMartin Schwidefsky * instruction 371c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 372c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 373c7d4d259SMartin Schwidefsky */ 374*0177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 375c7d4d259SMartin Schwidefsky { 376c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 377c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 378c7d4d259SMartin Schwidefsky 379c7d4d259SMartin Schwidefsky asm volatile( 380c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 381c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 382c7d4d259SMartin Schwidefsky : 383c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 384c7d4d259SMartin Schwidefsky : "cc", "memory"); 385c7d4d259SMartin Schwidefsky } 386c7d4d259SMartin Schwidefsky 387c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 388